def main():
wantPlot = True
zoom = False
ra_deg = 98.15766666666666
dec_deg = 21.594944444444444
scRoll_deg = 157.6053108
fovRoll_deg = fov.getFovAngleFromSpacecraftRoll(scRoll_deg)
k = fov.KeplerFov(ra_deg, dec_deg, fovRoll_deg)
#Position of example star, WASP-67
ra_deg, dec_deg = 103.67845833333334, 24.245555555555555
#Get coordinates of channel corners.
raDec = k.getCoordsOfChannelCorners()
#Is a given ra/dec on silicon?
try:
ch = k.pickAChannel(ra_deg, dec_deg)
print "Star is on channel %i Mod-out %s" %(ch, fov.modOutFromChannel(ch))
except ValueError:
print "Star is not on silicon"
print "Caution: Stars within 5 pix of channel edges are not found by this algorithm"
ch, col, row = k.getChannelColRow(ra_deg, dec_deg)
print "Star is on channel %i Col %.1f Row %.1f" %(ch, col, row)
if wantPlot:
mp.clf()
#ph is a projection class, in this case HammerAitoff. Pass this
#class to all FOV plotting commands so it knows how to do the
#plotting. ph also implements matplotlib's plot, scatter and text
#commands
#ph = proj.HammerAitoff(0,0)
ph = proj.Cylindrical()
ph.plotGrid()
k.plotPointing(ph)
#scenery.plotEcliptic(ph)
plotWithLabel(ph, ra_deg, dec_deg, "HD 50554")
if zoom:
mp.axis([.88, 1.36, -0.60, -0.20])
k.plotChIds(ph, modout=True)
mp.show()
def main():
wantPlot = True
zoom = False
ra_deg = 98.15766666666666
dec_deg = 21.594944444444444
scRoll_deg = 157.6053108
fovRoll_deg = fov.getFovAngleFromSpacecraftRoll(scRoll_deg)
k = fov.KeplerFov(ra_deg, dec_deg, fovRoll_deg)
#Position of example star, WASP-67
ra_deg, dec_deg = 103.67845833333334, 24.245555555555555
#Get coordinates of channel corners.
raDec = k.getCoordsOfChannelCorners()
#Is a given ra/dec on silicon?
try:
ch = k.pickAChannel(ra_deg, dec_deg)
print "Star is on channel %i Mod-out %s" % (ch,
fov.modOutFromChannel(ch))
except ValueError:
print "Star is not on silicon"
print "Caution: Stars within 5 pix of channel edges are not found by this algorithm"
ch, col, row = k.getChannelColRow(ra_deg, dec_deg)
print "Star is on channel %i Col %.1f Row %.1f" % (ch, col, row)
if wantPlot:
mp.clf()
#ph is a projection class, in this case HammerAitoff. Pass this
#class to all FOV plotting commands so it knows how to do the
#plotting. ph also implements matplotlib's plot, scatter and text
#commands
#ph = proj.HammerAitoff(0,0)
ph = proj.Cylindrical()
ph.plotGrid()
k.plotPointing(ph)
#scenery.plotEcliptic(ph)
plotWithLabel(ph, ra_deg, dec_deg, "HD 50554")
if zoom:
mp.axis([.88, 1.36, -0.60, -0.20])
k.plotChIds(ph, modout=True)
mp.show()
def K2onSilicon(infile,fieldnum,epicfile):
ra_sources_deg, dec_sources_deg, mag = parse_file(infile)
if np.shape(ra_sources_deg)[0] > 500:
print('There are {} sources in your target list, this could take some time'.format(np.shape(ra_sources_deg)[0]))
ra_deg, dec_deg, scRoll_deg = getRaDecRollFromFieldnum(fieldnum)
## convert from SC roll to FOV coordinates
## do not use the fovRoll coords anywhere else
## they are internal to this script only
fovRoll_deg = fov.getFovAngleFromSpacecraftRoll(scRoll_deg)
## initialize class
k = fov.KeplerFov(ra_deg, dec_deg, fovRoll_deg)
raDec = k.getCoordsOfChannelCorners()
onSilicon = map(onSiliconCheck,
ra_sources_deg,dec_sources_deg,np.repeat(k,len(ra_sources_deg)))
nearSilicon = map(nearSiliconCheck,
ra_sources_deg,dec_sources_deg,np.repeat(k,len(ra_sources_deg)))
onSilicon = np.array(onSilicon,dtype=bool)
nearSilicon = np.array(nearSilicon, dtype=bool)
#hack by DH to overplot EPIC catalog
ra=np.zeros(100000)
dec=np.zeros(100000)
f = open(epicfile, 'r')
n=0
n2=0
# only take every 100th EPIC source to speed things up
for line in f:
if (n % 100 != 0):
n=n+1
continue
line = line.strip()
columns = line.split("|")
ra[n2]=columns[9]
dec[n2]=columns[10]
n=n+1
n2=n2+1
use=np.where(ra > 0)[0]
print(n)
print(np.size(use))
ra=ra[use]
dec=dec[use]
if got_mpl:
almost_black = '#262626'
light_grey = np.array([float(248)/float(255)]*3)
#ph = proj.Gnomic(ra_deg, dec_deg)
ph = proj.PlateCaree()
k.plotPointing(ph,showOuts=False,plot_degrees=False)
targets = ph.skyToPix(ra_sources_deg, dec_sources_deg)
targets = np.array(targets ) #* 180 / np.pi
fig = plt.gcf()
ax = fig.gca()
ax = fig.add_subplot(111)
#hack by DH to overplot EPIC catalog
ax.scatter(ra,dec,s=1)
ax.scatter(*targets,s=2,label='not on silicon')
ax.scatter(targets[0][nearSilicon],
targets[1][nearSilicon],color='#fc8d62',s=8,label='near silicon')
ax.scatter(targets[0][onSilicon],
targets[1][onSilicon],color='#66c2a5',s=8,label='on silicon')
ax.set_xlabel('R.A. [degrees]',fontsize=16)
ax.set_ylabel('Declination [degrees]',fontsize=16)
ax.invert_xaxis()
ax.minorticks_on()
legend = ax.legend(loc=0,
frameon=True, scatterpoints=1)
rect = legend.get_frame()
rect.set_alpha(0.3)
rect.set_facecolor(light_grey)
rect.set_linewidth(0.0)
texts = legend.texts
for t in texts:
t.set_color(almost_black)
fig.savefig('targets_fov.png',dpi=300)
plt.close('all')
siliconFlag = np.zeros_like(ra_sources_deg)
siliconFlag = np.where(nearSilicon,1,siliconFlag)
siliconFlag = np.where(onSilicon,2,siliconFlag)
outarr = np.array([ra_sources_deg, dec_sources_deg, mag, siliconFlag])
np.savetxt('targets_siliconFlag.csv', outarr.T, delimiter=', ',
fmt=['%10.10f','%10.10f','%10.2f','%i'])
if got_mpl:
print('I made two files: targets_siliconFlag.csv and targets_fov.png')
else:
print('I made one file: targets_siliconFlag.csv')
def K2onSilicon(infile, fieldnum, epicfile):
ra_sources_deg, dec_sources_deg, mag = parse_file(infile)
if np.shape(ra_sources_deg)[0] > 500:
print(
'There are {} sources in your target list, this could take some time'
.format(np.shape(ra_sources_deg)[0]))
ra_deg, dec_deg, scRoll_deg = getRaDecRollFromFieldnum(fieldnum)
## convert from SC roll to FOV coordinates
## do not use the fovRoll coords anywhere else
## they are internal to this script only
fovRoll_deg = fov.getFovAngleFromSpacecraftRoll(scRoll_deg)
## initialize class
k = fov.KeplerFov(ra_deg, dec_deg, fovRoll_deg)
raDec = k.getCoordsOfChannelCorners()
onSilicon = map(onSiliconCheck, ra_sources_deg, dec_sources_deg,
np.repeat(k, len(ra_sources_deg)))
nearSilicon = map(nearSiliconCheck, ra_sources_deg, dec_sources_deg,
np.repeat(k, len(ra_sources_deg)))
onSilicon = np.array(onSilicon, dtype=bool)
nearSilicon = np.array(nearSilicon, dtype=bool)
#hack by DH to overplot EPIC catalog
ra = np.zeros(100000)
dec = np.zeros(100000)
f = open(epicfile, 'r')
n = 0
n2 = 0
# only take every 100th EPIC source to speed things up
for line in f:
if (n % 100 != 0):
n = n + 1
continue
line = line.strip()
columns = line.split("|")
ra[n2] = columns[9]
dec[n2] = columns[10]
n = n + 1
n2 = n2 + 1
use = np.where(ra > 0)[0]
print(n)
print(np.size(use))
ra = ra[use]
dec = dec[use]
if got_mpl:
almost_black = '#262626'
light_grey = np.array([float(248) / float(255)] * 3)
#ph = proj.Gnomic(ra_deg, dec_deg)
ph = proj.PlateCaree()
k.plotPointing(ph, showOuts=False, plot_degrees=False)
targets = ph.skyToPix(ra_sources_deg, dec_sources_deg)
targets = np.array(targets) #* 180 / np.pi
fig = plt.gcf()
ax = fig.gca()
ax = fig.add_subplot(111)
#hack by DH to overplot EPIC catalog
ax.scatter(ra, dec, s=1)
ax.scatter(*targets, s=2, label='not on silicon')
ax.scatter(targets[0][nearSilicon],
targets[1][nearSilicon],
color='#fc8d62',
s=8,
label='near silicon')
ax.scatter(targets[0][onSilicon],
targets[1][onSilicon],
color='#66c2a5',
s=8,
label='on silicon')
ax.set_xlabel('R.A. [degrees]', fontsize=16)
ax.set_ylabel('Declination [degrees]', fontsize=16)
ax.invert_xaxis()
ax.minorticks_on()
legend = ax.legend(loc=0, frameon=True, scatterpoints=1)
rect = legend.get_frame()
rect.set_alpha(0.3)
rect.set_facecolor(light_grey)
rect.set_linewidth(0.0)
texts = legend.texts
for t in texts:
t.set_color(almost_black)
fig.savefig('targets_fov.png', dpi=300)
plt.close('all')
siliconFlag = np.zeros_like(ra_sources_deg)
siliconFlag = np.where(nearSilicon, 1, siliconFlag)
siliconFlag = np.where(onSilicon, 2, siliconFlag)
outarr = np.array([ra_sources_deg, dec_sources_deg, mag, siliconFlag])
np.savetxt('targets_siliconFlag.csv',
outarr.T,
delimiter=', ',
fmt=['%10.10f', '%10.10f', '%10.2f', '%i'])
if got_mpl:
print('I made two files: targets_siliconFlag.csv and targets_fov.png')
else:
print('I made one file: targets_siliconFlag.csv')
